**Unformatted text preview: **showing the desired result. b) In any collision for which other forces may be neglected the velocity of the center of mass does not change, and the 2 cm 2 1 Mv in the kinetic energy will not change. The other terms can be zero (for a perfectly inelastic collision, which is not likely), but never negative, so the minimum possible kinetic energy is . 2 cm 2 1 Mv...

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